#include <iostream>
using namespace std;
int main()
{
	int a1=10;
	int a2=3;
	cout<<a1-a2<<endl;
	cout<<a1+a2<<endl;
	cout<<a1*a2<<endl;
	cout<<a1/a2<<endl;
	double d1=2.5,d2=0.3;
	cout<<d1/d2<<endl;
	system("pause");
	return 0;
}